团 体 标 准 T/CFA 020101223 --2021 水轮机球阀铸钢件技术规范 2021–05–01 发布 2021–08–01 实施 发 布Technical specifications for steel castings of hydro-turbine ball valves ICS 77.140.80 CCS J 31 中 国 铸 造 协 会 全国团体标准信息平台 全国团体标准信息平台 T/CFA 020101223 --2021 I 目 次 前 言 ................................ ................................ ................................ ................................ ................................ II 引 言 ................................ ................................ ................................ ................................ .............................. III 1 范围 ................................ ................................ ................................ ................................ ................................ 1 2 规范性引用文件 ................................ ................................ ................................ ................................ ............ 1 3 术语和定义 ................................ ................................ ................................ ................................ .................... 1 4 总体要求 ................................ ................................ ................................ ................................ ........................ 2 5 技术要求 ................................ ................................ ................................ ................................ ........................ 2 5.1 化学成分 ................................ ................................ ................................ ................................ ................. 2 5.2 力学性能 ................................ ................................ ................................ ................................ ................. 2 5.3 表面质量 ................................ ................................ ................................ ................................ ................. 2 5.4 内部缺陷 ................................ ................................ ................................ ................................ ................. 3 5.5 尺寸公差 ................................ ................................ ................................ ................................ ................. 3 5.6 无损检测 ................................ ................................ ................................ ................................ ................. 3 6 制造工艺 ................................ ................................ ................................ ................................ ........................ 3 6.1 概述 ................................ ................................ ................................ ................................ ......................... 3 6.2 熔炼 ................................ ................................ ................................ ................................ ......................... 3 6.3 铸造 ................................ ................................ ................................ ................................ ......................... 3 6.4 清理 ................................ ................................ ................................ ................................ ......................... 3 6.5 热处理 ................................ ................................ ................................ ................................ ..................... 3 6.6 焊补 ................................ ................................ ................................ ................................ ......................... 4 7 试验方法 ................................ ................................ ................................ ................................ ........................ 4 7.1 试验方法 ................................ ................................ ..........................